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authorBenjamin Tissoires <benjamin.tissoires@redhat.com>2017-01-30 10:48:06 +0100
committerJiri Kosina <jkosina@suse.cz>2017-02-03 14:45:57 +0100
commitf3287a995ac3520b1afcf03932b9c405f502657c (patch)
treeb54c9641b4d2a6be1d7b8ad6bec8c9db2a245855 /drivers/hid/hid-ids.h
parent8e9faa15469ed7c7467423db4c62aeed3ff4cae3 (diff)
downloadlwn-f3287a995ac3520b1afcf03932b9c405f502657c.tar.gz
lwn-f3287a995ac3520b1afcf03932b9c405f502657c.zip
HID: multitouch: fix LG Melfas touchscreen
The LG Melfas touchscreen has a bad firmware where it declares the Contact ID field as constant while it shouldn't. This messes up the autodetection and the reporting of the events by hid-multitouch given that hid-input ignores constant fields. The autodetection is simply worked around by manually adding the device to hid_have_special_driver[]. The processing of the events requires either a report fixup, or some specific case handling. Given that the report fixup would require to basically rewrite all the report descriptor, I went for the programatic way of fixing that after the report descriptors are loaded. Link: https://bugzilla.redhat.com/show_bug.cgi?id=1416181 Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-ids.h')
-rw-r--r--drivers/hid/hid-ids.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 350accfee8e8..8943a58c626d 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -633,6 +633,7 @@
#define USB_VENDOR_ID_LG 0x1fd2
#define USB_DEVICE_ID_LG_MULTITOUCH 0x0064
+#define USB_DEVICE_ID_LG_MELFAS_MT 0x6007
#define USB_VENDOR_ID_LOGITECH 0x046d
#define USB_DEVICE_ID_LOGITECH_AUDIOHUB 0x0a0e